The grant command grants specific rights like read, write, execute, and admin on a table to a particular user. The syntax of grant command is as follows:

hbase> grant <user> <permissions> [<table> [<column family> [<column; qualifier>]]

We can grant zero or more privileges to a user from the set of RWXCA, where

R – represents read privilege.
W – represents write privilege.
X – represents execute privilege.
C – represents create privilege.
A – represents admin privilege.

Given below is an example that grants all privileges to a user named ‘Tecklearn’.

hbase(main):018:0> grant ‘Tecklearn’, ‘RWXCA’

revoke

The revoke command is employed to revoke a user’s access rights of a table. Its syntax is as follows:

hbase> revoke <user>

The following code revokes all the permissions from the user named ‘Tecklearn’.

hbase(main):006:0> revoke ‘Tecklearn’

user_permission

This command is employed to list all the permissions for a particular table. The syntax of user_permission is as follows:

hbase>user_permission ‘tablename’

The following code lists all the user permissions of ‘emp’ table.

hbase(main):013:0> user_permission ’emp’

So, this brings us to the end of blog. This Tecklearn ‘Deep dive into HBase Scan, Count and Truncate command and how to achieve security in HBase’ helps you with commonly asked questions if you are looking out for a job in HBase and No-SQL Database Domain.

If you wish to learn HBase and build a career in HBase or No-SQL Database domain, then check out our interactive, Apache HBase Training, that comes with 24*7 support to guide you throughout your learning period. Please find the link for course details:

https://www.tecklearn.com/course/apache-hbase-training/

Apache HBase Training

About the Course

Tecklearn Apache HBase training will master the powerful NoSQL distributed database. You will learn HBase architecture, data analytics using HBase, integration with Hive, monitoring cluster using ZooKeeper and working on real-life industry projects. Build your career as a certified HBase professional through our hands-on training with real-world examples. Upon completion of this online training, you will hold a solid understanding and hands-on experience with Apache HBase.

Why Should you take Apache HBase Training?

HBase is now the largest data-driven service serving top websites including Facebook Messaging Platform.
There is Strong demand for HBase qualified professionals and they are paid big bucks for the right skills.
According to indeed.com, the average pay of an HBase developer stands at $81,422 per annum.

What you will Learn in this Course?

Introduction to HBase and NoSQL

Introduction to HBase
Fundamentals of HBase
What is NoSQL
NoSQL Vs RDBMS
Why HBase
Where to use HBase

HBase Data Modelling

Data Modelling
HDFS vs. HBase
HBase Use Cases

HBase Architecture and Components

HBase Architecture
Components of HBase Cluster

HBase Installation

Prerequisites for HBase Installation
Installation Steps

Programming in HBase

Create an Eclipse Project for HBase
Simple Table Creation from Java in HBase
HBase API
HBase Shell
Primary operations and advanced operations

Integration of Hive with HBase

Create a table and insert data into it
Integration of Hive with HBase
HBase Mapping

Deep Dive into HBase

Input Data into HBase
File Loading
HDFS File
HBase handling files in File System
WAL
Seek Vs Transfer
HBase ACID Properties

Got a question for us? Please mention it in the comments section and we will get back to you.

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